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Fix CompareAndSwapOp when useLSE is enabled. #484

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Jun 28, 2018
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Fix CompareAndSwapOp when useLSE is enabled. #484

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Fix CompareAndSwapOp when useLSE is enabled.
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@zhongweiy
zhongweiy committed Jun 20, 2018
commit af8e8b56b93e14bcdb808f2ca8079e9256879af1
2 changes: 1 addition & 1 deletion ....graalvm.compiler.lir.aarch64/src/org/graalvm/compiler/lir/aarch64/AArch64AtomicMove.java
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Expand Up @@ -83,7 +83,7 @@ public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) {
if (AArch64LIRFlagsVersioned.useLSE(masm.target.arch)) {
Register expected = asRegister(expectedValue);
masm.mov(size, result, expected);
masm.cas(size, expected, newVal, address, true /* acquire */, true /* release */);
masm.cas(size, result, newVal, address, true /* acquire */, true /* release */);
AArch64Compare.gpCompare(masm, resultValue, expectedValue);
} else {
// We could avoid using a scratch register here, by reusing resultValue for the
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